find the geometric sequence of the first seven terms of 80+32+64/5+...

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1 Answer

80 + 32 + 64/5 + 

Geometric sequence = going from one number to the next multiplies or divides by the same number for each step.

32/80 = 2/5

Will it work for the next step?

(64/5)/32 = 64/160 = 2/5

Yes.

For each following step, just multiply the previous number by 2/5

80, 32, 64/5, 128/25, 256/125, 512/625, 1024/3125

by Level 13 User (103k points)

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